Ultrasonic Display Vibration Structure With Rear Press Loading
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Solution Overview
Problem
Existing display apparatuses lack the ability to provide intense ultrasonic vibrations or haptics, and their connection to display members is not optimized for efficient vibration transmission.
Innovation Solution
A vibration apparatus with a press structure at its rear surface is integrated to increase mechanical quality factor, allowing for enhanced out-plane vibration mode and ultrasonic haptics, and is unified with a signal supply member for improved attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a vibration generating part is integrated with a display member, then ultrasonic vibration can be provided to the user, but the intensity of ultrasonic vibration is insufficient
Solution Approach 1:
The vibration generating part is integrated directly with the display member, merging the vibration function into the display structure itself. This integration ensures strong connection quality while enabling ultrasonic vibration generation for haptic feedback.
Solution Approach 2:
The resonant frequency of the vibration generating part is adjusted to match the resonant frequency of the display member. By changing the frequency parameter to achieve resonance, the ultrasonic vibration intensity is significantly enhanced while maintaining reliable connection.
2Force
If the vibration generating part is designed for high vibration intensity, then ultrasonic haptics can be provided, but the connection to display member is not optimized
Solution Approach 1:
A pressing member is introduced to apply mechanical pressure to the vibration generating part, securing it firmly to the display member. This mechanical pressing ensures high attachment quality and stable connection, enabling the vibration generating part to deliver strong ultrasonic haptics without connection issues.
3Adaptability or versatility
If a separate vibration generating apparatus is used, then vibration function can be added, but the device complexity increases
Solution Approach 1:
The vibration generating part is merged with the display member structure, and the pressing member is integrated into the existing display assembly. This merging approach adds the vibration function without requiring a completely separate vibration generating apparatus, thus avoiding excessive increase in device complexity.
Solution Approach 2:
The display member serves dual functions: displaying visual information and generating ultrasonic vibrations for haptic feedback. This multi-functionality eliminates the need for dedicated separate components, reducing overall device complexity while maintaining vibration functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances ultrasonic vibration intensity and improves attachment quality, providing effective ultrasonic haptics and vibration transmission to display members.
Implementation Method 1
a vibration generating part 510 configured to vibrate based on a driving signal applied thereto
Implementation Method 2
a press structure 570 configured at a rear surface of the vibration generating part 510 and configured to apply pressure to the vibration generating part 510
Data Source
AI summary
A vibration apparatus includes a vibration generating part and a press structure configured at a rear surface of the vibration generating part and configured to apply pressure to the vibration generating part. A display apparatus and a vehicular apparatus having the vibration apparatus are provided. The vibration apparatus may provide an ultrasonic vibration or an ultrasonic haptic to a user when a user touch is applied thereto.